Top NAICS 541620 Contractors FY2025

Contractors ranked by obligations under ENVIRONMENTAL CONSULTING SERVICES during fiscal year 2025.

Quick answer

S C & A INC leads NAICS 541620 in FY2025 with $12,627,588 in ingested federal contract obligations.

Market Snapshot

Ranked contractors22
Top obligations$12,627,588
RankUEIContractorObligationsAwards
1FD83JSMSL9K1S C & A INC$12,627,5881
2XS6HLML4J2D1TECHNICAL RESOURCES GROUP INC.$3,226,9081
3P7NBL1A5NNK8ENVIRONMENTAL MANAGEMENT SUPPORT, INC$3,051,7743
4DK4TBEJRAR56EASTERN RESEARCH GROUP INC$2,594,1786
5Z59FHWW22H42STEWART BROTHERS DRILLING COMPANY$1,323,4831
6C76NUJZDXL75WSP USA ENVIRONMENT & INFRASTRUCTURE INC.$1,289,2981
7JCHUL8M1HHK5BB&E, INC.$1,042,4761
8EHPRA8XKYA34WESTON-TECHLAW JV LLC$576,8531
9WSEZME8NNBA8THE CADMUS GROUP LLC$524,6551
10DHS5ZJSFCSH9CDM FEDERAL PROGRAMS CORPORATION$404,9971
11M3RJHXNVSEB7ICF ENVIRONMENTAL, INC.$295,7401
12SMNWM6HN79X5GENERAL DYNAMICS INFORMATION TECHNOLOGY, INC.$245,0001
13U91NCLLQ2JV4CENTAUR CONSULTING GROUP LLC$208,0221
14YDV4XNSJVJL9HARPY TECHNOLOGIES, LLC$132,7081
15GPKAVAUCZEV8DMG FOUR CORNERS RESEARCH, INC$131,3691
16HHDHBZL5PLM5TETRA TECH, INC.$94,4741
17W9R6TCE2KTF9ASPEN CRM SOLUTIONS, INC.$79,5481
18QP3RKWTL9FU1PARKER HAGERTY$46,1631
19H4Z1ACWM8NN6BLUE WORLD RESEARCH INSTITUTE INC$29,9221
20CLMDT32GT7F7DCR SERVICES & CONSTRUCTION INC$23,0791
21ZT2YJR58MMB3ZIA ENGINEERING & ENVIRONMENTAL CONSULTANTS LLC$18,7841
22THDDK5RNKAJ5TERRACON CONSULTANTS INC$6,9501

Source: USAspending.gov. Last updated from ingested federal spending data: May 7, 2026.